1) Considering that we need to find out the value of angle A. We need to find out the arctangent of angle A, so let's calculate it:
2) Now we need to write it rounding it off to the nearest minute as we were told:
Note that, after the dot, we have .9947 subtracting it from .60, we have 80degrees 59 minutes and 41 seconds so we can answer that as